1. Relatively slow rates of chemical reaction are associated with which of the f
ID: 490839 • Letter: 1
Question
1. Relatively slow rates of chemical reaction are associated with which of the following? a. The presence of a catalyst b. High temperature c. High concentration of reactants d. Strong bonds in reactant molecules e, Low activation energy reactant 100 79 63 50 A reaction was observed for 20 days and the percentage of the reactant remaining after each day was recorded in the table above. Which of the following best describes the order and the half-life of the reaction? Half-Life (days) Reaction Order a. First 10 d. Second 100 Second 3. The Henry's Law constant (KH) for oxygon in water at 25 "c is 1.3 x 10 movoL atm). Calculate the mass (n in a bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air to be 0.21. a. 49.4 mg b, 23.5 mg c. 9.87 mg d, 27.3 mg c. 13.7 mg 4. solution is made by 250.0 g of crystals (KaCro4. molar mass 194.2 g/mol) in 1.00 of What will the freezing point of the new solution Kr water a 1.86 "C m 8.87 "C b. 7.18 °C -5.73 °C. d. -3.2 *C e. 1.86 "C 5. lf you were to increase the amount carbon dioxide gas, coz. in water, which set of conditions would allow the highest levels of dissolved CO2? Pressure of CO2 Temp of water (C) above water (atm) 10.0 5.0 10 1.0 3 of 11Explanation / Answer
Answer:
Rate of reaction is governed by the Slow step i.e. Rate Determining Step.
As the activation energy of the Transition State increases reaction become slow.
While comparing Rates of two different reaction,it is the Activation energy Factor which determines there Relative Rates.
Higher the Activation Enrgy slower is the reaction and vice versa.
Answer : Option (e) Low Activation Energy.
=======================XXXXXXXXXXXXXXXXXXX=======================
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.